I've worked at a few small/mid-sized software firms that have been bought out by larger players. Part of the due diligence that larger companies will undertake

I've worked at a few small/mid-sized software firms that have been bought out by larger players. Part of the due diligence that larger companies will undertake before acquiring any software IP is to determine the provenance and licensing of the software. So watch out for any bits of code copy/pasted from open source libraries and check that any third party libraries you use are correctly licensed. A big company may pull out of an acquisition at any time, even after performing due diligence. They will never say "Ha ha! It's because your code is rubbish" because an acquisition is a business decision not a technical one.